Assign an amount of tokens value to Vouchers.
I think it would a good feature for this plugin to have an option to create vouchers that have a value in an amount of tokens so that clients can redeem tokens instead of a money amount. Example: The user will purchase a voucher for $10 and that voucher will be equivalent to 3 tokens.
The feature you are asking is basically different from the concept of our plugin.
We already have a plugin on codecanyon with a feature you are asking. Please have a look.